Yantai Teachers University journal(Natural Science 2001 Vol. Issue 3

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烟台师范学院学报：自然科学版
Yantai Teachers University journal(Natural Science

Year 2001

Issue 3

sun hu shan jiao shou (孙虎山教授)

XIAO Ji

.................. page:160

Periodic solutions of second-order neutral differential equations with infinite delays (二阶中立型无穷时滞微分方程的周期解)

YANG Shu-rong, SHI Bao, YANG Shu-jie

.................. page:161-164

On absolute stability of nonstationary control systems (非定常控制系统的绝对稳定性)

YU Yong-sheng

.................. page:165-167

Perturbed gradient algorithm of unconstrained optimization problem (无约束最优化问题的扰动梯度算法)

XU Ying-jun

.................. page:168-170

Existence of positive solutions of second order nonlinear difference equations (一类二阶非线性差分方程正解的存在性)

XIE Dong-mei

.................. page:171-174

An improvement on Nasr's theorem (关于Nasr定理的改进)

SUN Yuan-gong

.................. page:175-177

A fast algorithm of pitch extraction based on a multi-level likeness checking mechanism (一种基于多层次相似检测机制的语音基频快速估计算法)

HUANG Sheng-ye 1, YE Wu 2

.................. page:178-181

An Agent-oriented requirement environment (面向Agent的需求分析环境)

SUN Wen-xing 1, WANG Xiao-jing 1, ZHAO Wen-quan 2

.................. page:182-186

Study on the determination of NO_3^- and NO_2^- in the high concentration of Cl^- matrices by ion chromatography (高浓度Cl^-对NO_2^-和NO_3^-分离测定的影响)

Lü Hai-tao 1, MOU Shi-fen 2

.................. page:187-190

Determination of vanillin by single-sweep oscillopolarography (用单扫描示波极谱法测定香草醛)

WANG Xiao-rong 1, XU Li-rui 2, ZHANG Yu-mei 2, YANG Fan 3

.................. page:191-193,198

Optimization of the pullulan fermentation medium (短梗霉多糖发酵培养基的优化)

WANG Chang-hai, JIN Hai-zhu, Jü Bao

.................. page:194-198

Effects of the transplanting factors on survival rate and growth of the tissue cultured plantlets of muskmelon (移栽条件对厚皮甜瓜试管苗成活及生长的影响)

BAI Xin-fu, JIANG Xiao-man, ZHAO Jian-ping, BI Ke-hua

.................. page:199-202

Discussion on motive power of towns in Yantai (烟台市小城镇发展动力机制研究)

LI Shi-tai, SUI Gan-cheng

.................. page:203-207

Study on emergence and development of Yantai urban complex (烟台市域城镇群产生、发展的研究与思考)

WEI Xing-hua 1, YONG Ling-e 2

.................. page:208-214

The characteristics and tourism development of the tourist resources of the Mengshan mountains (蒙山旅游资源特征及旅游业发展研究)

SHEN Hong-yuan 1, ZHANG Hong-mei 2

.................. page:215-219

Discussion on problems of setting up network college in China (我国建立网络大学有关问题的探讨)

JIANG Hui-xian

.................. page:220-224

The moment Parameter estimation in exponential distribution under censored data and interval data (截尾数据和分段数据下指数分布参数的矩估计)

ZHOU Li

.................. page:225-227

On development of multimedia data structure CAI courseware by VB (利用VB开发的多媒体数据结构CAI课件)

CUI Wei-dong

.................. page:228-232

Electronic activity and its application (电子活度及其应用)

PAN Zhi-xin 1, GAO Cui-ping 2

.................. page:233-235,240

Discussion on reform of public physical education curriculums of higher teacher college (高师公共体育课程体系改革初探)

YU Kai-feng, YU Shi-hao, YU Chun-ling, CONG Ming-zi BI Dao-yuan, ZHONG Shi-wei, QIN Wen, CAO Zai-chi

.................. page:236-240

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